package pers.mobian.myblog.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5Utils {


    public static String code(String str) {
        try {

            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(str.getBytes());
            byte[] byteDigest = md.digest();

            int i;
            StringBuffer buf = new StringBuffer();
            for (int offset = 0; offset < byteDigest.length; offset++) {
                i = byteDigest[offset];
                if (i < 0) {
                    i += 256;
                }
                if (i < 16) {
                    buf.append("0");
                }
                buf.append(Integer.toHexString(i));
            }

            //32位加速器
            return buf.toString();
            //16位加速器
            //return buf.toString().substring(8, 24);

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }
    }


    public static void main(String[] args) {
        System.out.println(code("111"));
    }
}
